Fuel-saver and primer



A. G. HUNT. FUEL SAVER AND PRIMER. APPLICATION FILED MAR. 13, 1919.

Patented Oct. 11, 1921.

UNITED .STA'ILES PATENT OFFICE.

ALEXANDER GEO. HUNT, OF ST. LOUIS, MISSOURI.

FUEL-SAVER AND PRIMER.

T0 aZZ whom it may concern:

Be it kIlOWIl-tllfitikLEXANDER G. HUNT, a citizen of the UnitedStates of America, residing at St. Louis, inthe county of St. Louis and State of Missouri, has invented. new and useful Improvements in Fuel- Savers and Primers, of which the following is a specification.

The purpose of the invention is to provide a device for use in conjunction with internal combustion engines such as are employed for the propulsion of vehicles, the invention having in view the increase in power of the engine, by the elimination of carbon in the cylinders. To this end it comprises tubular connections between the water jacket and the intake manifold of the engine which connections are valve controlled and further connections between a priming tank and the first of said connections, the last said connections being for the purpose of the admission of air for c'ommingling with the water drawn from the water jacket.

A further purpose of the invention is the provision of the above mentioned character which is simple in construction, durable and effective in operation and inexpensive to manufacture and apply.

Other and further purposes appear as the detailed description of the invention progresses.

To illustrate and describe the invention a specific embodiment has been adhered to, but to this embodiment the invention is not to be restricted. The right is reserved to make such changes or alterations as the actual reduction to practice may suggest, in so far as such changes or alterations are compatible in spirit with the annexed claims.

In the accompanying drawings:

Figure 1 is a view partly in section and partly in elevation howing the practical application of the invention.

Fig. 2 is an enlarged view partly in section and partly in elevation of the invention per se.

Fig. 3 is a section on the line 33 of Fig. 2.

As shown, the invention is for use in con junction with an internal combustion engine 1, such as is employed for vehicle propulsion. Tapped in the intake manifold 2 of the engine there is a pipe 3, the latter connecting with an elbow 4, which in turn connects with the cross leg 5 of a tubular T- shaped member, the remaining end of this cross leg 5 connecting with a tube 6 which Specification 01' Letters Patent.

Patented Oct. 11, 1921.

Application filed March 13, 1919. Serial No. 282,392.

leads to the dash 7 of the vehicle, this tube connecting with a priming tank 8, a valve 9 and a tee 10 being serially connected and interposed between the tube 6 and the tank 8. The leg 11 of the tee 10 carriesa valve which when opened effects communication between the tube 6 and the atmosphere and which when closed shuts ofi such communication. When the valve 9 is open communication is effected between the priming tank 8 and the tube 6, and this valve is intended only for opening when the valve in the leg is closed.

The tank 8 is provided with a filling cap %2 1so that the tank may be supplied with The leg 13 of the previously mentionedT- shaped member has connected with it a tube 14 and this tube connects with the cap 15 of a valve whose body 16 is tapped. either into the water jacket or some other point on the circulatory system. The body 16 is formed with a valve seat on which a ball 17 mayengage'and this ball is held normally insuch engagement by a compression spring 18 inclosed within the cap 15. It will be observed that the ball 17 can be unseated only when the pressure in the circulatory system exceeds the pressure in the tube 14, this unseating of the ball being efiected against the pressure of the spring tion is created in the tube 14, the ball will be unseated and a certain amount of water or steam will be drawn from the circulatory system into the tube.

The T-shaped member on its cross leg 5 at a diametrically opposite point from the leg 13 is formed with a boss 19 drilled and tapped to receive the threaded portion of a valve stem 20, this valve stem below the threaded portion being materially reduced in diameter to provide the smooth portion 21 which terminates in a ball 22 designed to engage an appropriate valve seat formed in the leg 13, adjacent the point where the latter connects with the tube 14.

In the operation of the invention, it is obvious that the suction strokes of the engine will create a suction in the intake manifold with the result that a partial vacuum occurs in the pipe 3 and in the tube 14 through the leg 13 of the T-shaped member and in the tube 6. If the valve 9 be closed and the valve in the leg 11 be opened air will be drawn into the tube 6 and hot water or steam will be drawn into the tube 14, the air or steam and hot water commingling in the 18. Thus, if a suc- T-shaped member and thus being transferred to the intake manifold to the Well known beneficial operation of the engine. The amount of steam or hot water taken in at each stroke is effectively determined by the proper regulation of the valve 22, and it is obvious that such steam or hot water can only be taken in on the suction stroke since the valve 17 precludes a passage; oi water from the circulatory system into the tube 14 except when there is a difference in pressure on opposite sides of the valve, and the valve can operate only when the pressure in the tube 14 is lower than the pressure in the circulatory system.

If'engine 1 be at rest and it is desired to start the same, the cylinders can be given a priming charge by closing the Valve in the leg 11 thus cutting OK the admission of air to the tube 6. The opening of the valve9 when the aforesaid valve is closed will then permit fuel to pass from the priming tank 8 down through the tube 6, the T-shaped member and the pipe3 into the intake manifold and thenceinto the cylinder thereby providing the rich mixture essential to starting. "It will be observed that in this construction the priming charge does not pass through the carbureter but is admitted to the intake-manifold by a-separate and distinct means, the priming charge flowing from a priming tank into the intake manifold by gravity. g

' The invention having been described, what is claimed as new and useful is:

1. The combination with aninternal combustion engine having circulatory system, vof a tubular, T-shaped member, one end 0 whose cross leg is connected to the intake controlling its point of communication'with the said valve controlled tubular connection, the first said tubular member being for the purpose of admitting air or a priming charge to the said T-shaped member for the useful purpose specified.

2. The combination with an internal "combustion engine having acirculatory system, of a tubular T-shaped member, one end of whose cross leg is connected to the intake manifold of the engine, a tubular member connected with the other end of the cross leg, a valve controlled tubular connection between the remaining leg of the T-shaped member and the circulatory system, a valve carried in the T-shaped member and controlling its point of communication with the said valve controlledtubular connection, and a manually selective eontrol'by which either air or gasolene is admitted to the T-shaped member at the end remote connects with the manifold. I

In testimony whereof I afiix my signature.

ALEXANDER GEO. HUNT;

from that which v leg of the T-shaped 

